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English definition of “gas”

gas

noun     /ɡæs/ (plural gases or gasses)
[C or U] ENVIRONMENT a substance in a form like air that is neither solid nor liquid: Oxygen, hydrogen and nitrogen are all gases. All EU countries are required to cut their emissions of greenhouse gases.
[U] ( US also gasoline, UK petrol) NATURAL RESOURCES, TRANSPORT a liquid obtained from petroleum, used especially as fuel for cars and other vehicles: It was getting late and we were nearly out of gas. The price of gas seems to be getting higher and higher. → See also greenhouse gas, natural gas
(Definition of gas noun from the Cambridge Business English Dictionary © Cambridge University Press)
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